Evidence that its Dave Kitson from some of the past Secret Footballer articles ...
Started career in lower leagues - Cambridge
Been a member of a side promoted to the Premier League - Reading
He has played for a newly promoted Premier League club - Reading
Played last game of the season needing to win to avoid relegation - Reading
Has been relegated from Premier League - Reading
Has been a record transfer signing - Stoke bought him for record 5.5 million
That transfer did not work out - failed to score all season - played 18, 0 goals
Moved clubs on transfer deadline day - Stoke to Portsmouth
Career on the wane - was once tipped to play for England, now can't get in Portsmouth team just relegated to League One
Friends with an African who once played in Russia - Andre Bikey at Reading
Once saw his manager pick up the chairman and throw him out the dressing room- could only be in the lower leagues surely - has to be John Beck at Cambridge
Has also talked about growing up on a council estate and from the articles has almost certainly played for teams in provincial 1 team towns - Reading, Portsmouth, Stoke
Plus this interview back in 2007
http://www.guardian.co.uk/football/2007/dec/29/newsstory.reading?INTCMP=SRCH